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$874+ Cheap flights from Australia to Louisville (SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SDF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Australia to Louisville

Best flights from Australia to Louisville
Discover carefully curated flight deals from Australia to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:30 amMEL - SDF
2 stops26h 29mUnited Airlines
Sat 2/73:30 pmSDF - MEL
2 stops26h 00mUnited Airlines
Deal found 12/17$876
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:15 amSYD - SDF
2 stops23h 46mDelta
Mon 5/47:30 pmSDF - SYD
2 stops45h 05mDelta
Deal found 12/15$1,435
This Air New Zealand deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/318:35 amMEL - SDF
3 stops29h 55mMultiple Airlines
Sat 2/711:10 amSDF - MEL
3 stops30h 15mMultiple Airlines
Deal found 12/17$1,529
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:20 amSYD - SDF
2 stops39h 43mAmerican Airlines
Sun 2/226:00 amSDF - SYD
1 stop32h 55mAmerican Airlines
Deal found 12/15$1,577
This Air Canada deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:20 amSYD - SDF
2 stops24h 49mAir Canada
Sun 2/225:35 amSDF - SYD
2 stops36h 00mAir Canada
Deal found 12/16$1,667
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3011:30 amMEL - SDF
2 stops24h 24mUnited Airlines
Fri 2/63:22 pmSDF - MEL
2 stops26h 38mUnited Airlines
Deal found 12/16$877
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2911:30 amMEL - SDF
2 stops24h 24mUnited Airlines
Thu 2/59:00 amSDF - MEL
2 stops33h 00mUnited Airlines
Deal found 12/15$878
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:10 amSYD - SDF
2 stops22h 20mAmerican Airlines
Mon 5/48:30 pmSDF - SYD
1 stop20h 25mAmerican Airlines
Deal found 12/16$1,711
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:30 amSYD - SDF
2 stops27h 02mUnited Airlines
Mon 5/43:30 pmSDF - SYD
2 stops25h 30mUnited Airlines
Deal found 12/14$1,428
This Cathay Pacific deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:00 pmSYD - SDF
3 stops45h 55mMultiple Airlines
Mon 5/47:53 amSDF - SYD
2 stops46h 17mMultiple Airlines
Deal found 12/16$1,813
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/294:05 pmMEL - SDF
1 stop20h 42mAmerican Airlines
Thu 2/51:32 pmSDF - MEL
2 stops27h 58mAmerican Airlines
Deal found 12/15$1,773
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/314:05 pmMEL - SDF
1 stop37h 38mAmerican Airlines
Sat 2/77:40 amSDF - MEL
1 stop29h 20mAmerican Airlines
Deal found 12/17$1,804
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/251:00 pmMEL - SDF
2 stops24h 46mUnited Airlines
Sun 3/12:05 pmSDF - MEL
2 stops27h 25mUnited Airlines
Deal found 12/16$1,666
This Mytrip deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/298:00 amMEL - SDF
3 stops27h 54mMultiple Airlines
Thu 2/510:35 amSDF - MEL
2 stops44h 45mMultiple Airlines
Deal found 12/15$2,170
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:55 pmADL - SDF
2 stops22h 59mUnited Airlines
Sun 2/811:10 amSDF - ADL
2 stops54h 50mUnited Airlines
Deal found 12/17$1,668
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:50 amSYD - SDF
1 stop25h 56mUnited Airlines
Sun 2/223:30 pmSDF - SYD
1 stop23h 30mUnited Airlines
Deal found 12/16$1,673
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/112:55 pmADL - SDF
2 stops22h 59mUnited Airlines
Sun 2/152:05 pmSDF - ADL
2 stops51h 55mUnited Airlines
Deal found 12/15$1,676

Find flight deals from Australia to Louisville

Keep the following information in mind while searching for Australia to Louisville flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$876
(United Airlines)

One-way from

$874
(Delta)

Popular in

December

Cheapest in

October

Average price

$2,255
Provider with most accurate pricing for Sydney Kingsford Smith-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Louisville Intl flights.
Search Deals
From Australia to Louisville Intl
Search Deals
One-way flight from Australia to Louisville Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Australia to Louisville that are best for you.

Fly from

Australia

Fly to

Louisville

Route

Depart

Return

Price

MelbourneLouisville

MEL - SDF

MELSDF

Melbourne

Sat 1/31

11:30 am-9:59 pm

2 stops26h 29m

Louisville Intl

Sat 2/7

3:30 pm-9:30 am

2 stops26h 00m

$876

MelbourneLouisville

MEL - SDF

MELSDF

Melbourne

Fri 1/30

11:30 am-7:54 pm

2 stops24h 24m

Louisville Intl

Fri 2/6

3:22 pm-10:00 am

2 stops26h 38m

$877

MelbourneLouisville

MEL - SDF

MELSDF

Melbourne

Thu 1/29

11:30 am-7:54 pm

2 stops24h 24m

Louisville Intl

Thu 2/5

9:00 am-10:00 am

2 stops33h 00m

$878

SydneyLouisville

SYD - SDF

SYDSDF

Sydney Kingsford Smith

Fri 4/24

9:30 am-10:32 pm

2 stops27h 02m

Louisville Intl

Mon 5/4

3:30 pm-7:00 am

2 stops25h 30m

$1,428

SydneyLouisville

SYD - SDF

SYDSDF

Sydney Kingsford Smith

Fri 4/24

9:15 am-7:01 pm

2 stops23h 46m

Louisville Intl

Mon 5/4

7:30 pm-6:35 am

2 stops45h 05m

$1,435

MelbourneLouisville

MEL - SDF

MELSDF

Melbourne

Sat 1/31

8:35 am-10:30 pm

3 stops29h 55m

Louisville Intl

Sat 2/7

11:10 am-9:25 am

3 stops30h 15m

$1,529

SydneyLouisville

SYD - SDF

SYDSDF

Sydney Kingsford Smith

Wed 2/18

11:20 am-11:03 am

2 stops39h 43m

Louisville Intl

Sun 2/22

6:00 am-6:55 am

1 stop32h 55m

$1,577

MelbourneLouisville

MEL - SDF

MELSDF

Melbourne

Wed 2/25

1:00 pm-9:46 pm

2 stops24h 46m

Louisville Intl

Sun 3/1

2:05 pm-9:30 am

2 stops27h 25m

$1,666

SydneyLouisville

SYD - SDF

SYDSDF

Sydney Kingsford Smith

Wed 2/18

11:20 am-8:09 pm

2 stops24h 49m

Louisville Intl

Sun 2/22

5:35 am-9:35 am

2 stops36h 00m

$1,667

AdelaideLouisville

ADL - SDF

ADLSDF

Adelaide

Wed 2/4

2:55 pm-10:24 pm

2 stops22h 59m

Louisville Intl

Sun 2/8

11:10 am-9:30 am

2 stops54h 50m

$1,668

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 20 results
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Best time to book a flight from Australia to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Australia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Australia to Louisville

What is the cheapest month to book a flight from Australia to Louisville?

Currently, November is the cheapest month in which you can book a flight from Australia to Louisville (average of $627). Flying from Australia to Louisville in April is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AU to SDF?

Find hourly flight availability from Australia to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Australia to Louisville at noon. Doing so could potentially save you 30% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Australia to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from Australia?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Australia to Louisville.

  • How long is the flight from Australia to Louisville?

    For as low as $1,435, United Airlines can have you in Louisville from Australia in 23h 46m. Australia and Louisville are separated by a distance of 9288 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Australia to Louisville?

    The most popular flight routes from Australia to Louisville are Melbourne - Louisville Intl, Adelaide - Louisville Intl and Sydney Kingsford Smith - Louisville Intl.

  • Can I find deals for flights from Australia to Louisville that include hotel bookings?

    Yes. In addition to deals on Australia to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Australia to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Louisville.

  • Can I find deals for business class flights from Australia to Louisville?

    Yes. Cheapflights offers flight deals from Australia to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Australia to Louisville?

    Currently, November is the cheapest month in which you can book a flight from Australia to Louisville (average of $627). Flying from Australia to Louisville in April is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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